/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.accumulo.miniclusterImpl;

import java.util.Objects;

/**
 * Opaque handle to a process.
 */
public class ProcessReference {
  private final Process process;

  ProcessReference(Process process) {
    this.process = Objects.requireNonNull(process);
  }

  public Process getProcess() {
    return process;
  }

  @Override
  public String toString() {
    return getProcess().toString();
  }

  @Override
  public int hashCode() {
    return getProcess().hashCode();
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj instanceof ProcessReference) {
      return getProcess().equals(((ProcessReference) obj).getProcess());
    }
    throw new IllegalArgumentException(obj + " is not of type " + this.getClass().getName());
  }
}
